82261687344 has 40 divisors (see below), whose sum is σ = 213862941360. Its totient is φ = 27245906688.

The previous prime is 82261687309. The next prime is 82261687357. The reversal of 82261687344 is 44378616228.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5450379 + ... + 5465450.

It is an arithmetic number, because the mean of its divisors is an integer number (5346573534).

Almost surely, 2^82261687344 is an apocalyptic number.

It is an amenable number.

82261687344 is an abundant number, since it is smaller than the sum of its proper divisors (131601254016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82261687344 is a wasteful number, since it uses less digits than its factorization.

82261687344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915997 (or 10915991 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 51.

The spelling of 82261687344 in words is "eighty-two billion, two hundred sixty-one million, six hundred eighty-seven thousand, three hundred forty-four".